Analysis of Genetic and Biogeography Diversity of Korean Indigenous Wild Rocambole (<i>Allium monanthum</i>Max)

This study was conducted to obtain baseline data describing Allium monanthum Max. for breeding an elite cultivar. A. monanthum has recently become popular vegetable in Korea owing to its unique flavors and nutraceutical effects. The agronomic traits of 271 accessions of A. monanthum collected throughout Korea were evaluated in this study. Leaf width showed the greatest variation (0.1 to 25 mm) among traits evaluated, followed by leaf sheath length and number of cormlets. The average leaf sheath length and diameter, which are commonly used to evaluate quality in the market, were 1.29 cm and 0.3 cm. Some superior accessions had a leaf sheath length of >10 cm and diameter of >1.1 cm. The average weight of the cormlets ranged from 1 to 2 g;however, one accession weighed more than 4 g. The genetic diversity of A. monanthum calculated based on morphology and molecular distance was greater in Jeolla and Gyeoungsang provinces than Gyeonggi and Chungcheong provinces. Finally, seven elite accessions of A. monanthum were selected owing to their potential usefulness in future breeding projects.

长白山区3种乌头属植物对3种农作物螟虫触杀活性的比较

[目的]基于均匀设计法探讨黄花乌头、北乌头和高山乌头的水蒸气蒸馏液对大螟、玉米螟和大豆荚螟的触杀作用。[结果]对大螟的24 h触杀结果表明:3种乌头对大螟均有较强触杀作用,触杀活性顺序为北乌头>黄花乌头>高山乌头。48 h时黄花乌头和北乌头对大螟保持着较好的触杀作用,触杀活性顺序为北乌头>黄花乌头。72 h仅北乌头还保持着较强的触杀作用。24、48、72 h致死中浓度LC50值分别为12.72、5.43、1.44 mg/L,校正死亡率分别达85.7%、88.9%、98.2%;对玉米螟的24、48 h触杀结果表明:北乌头和高山乌头对玉米螟均有较强的触杀作用,触杀活性顺序为北乌头>高山乌头。72 h仅北乌头保持着较强的触杀作用。24、48、72 h致死中浓度LC50值分别为15.97、15.17、1.71 mg/L,校正死亡率分别达92.3%、95.0%、99.4%;对大豆荚螟的24、48、72 h触杀结果表明:北乌头和高山乌头对大豆荚螟均有较强的触杀作用,触杀活性顺序均为北乌头>高山乌头。其24、48、72 h致死中浓度LC50值分别为17.27、17.18、12.39 mg/L,校正死亡率分别达90.0%、91.8%、99.0%。[结论]3种乌头对大螟均有较强触杀作用,北乌头和高山乌头对玉米螟和大豆荚螟表现出较强的触杀效果,黄花乌头对玉米螟和大豆荚螟的触杀效果不显著。